QUIZ 3 elbow

Question 1

what are the proximal joints of humerus

Answer 1

Glenohumeral

Question 2

what are the distal joints of humerus

Answer 2

1. Humeroulnar
2. Humeroradial
3. Proximal radioulnar

distal, mid radioulnar

Question 3

what 2 main joints make up the elbow complex

Answer 3

humeroulnar, humeroradial, proximal radioulnar

Question 4

humeroulnar joint type

Answer 4

hinge, uniaxial

Question 5

humeroulnar joint ligaments

Answer 5

joint capsule
radial/lateral collateral
ulnar/medial collateral

Question 6

what is the ulnar collateral ligament divided into

Answer 6

anterior
posterior
transverse

Question 7

humeroulnar articulating surfaces

Answer 7

CONCAVE trochlear notch of ulna
CONVEX trochlea of humerus

Question 8

loose pack / resting position HUMEROULNAR

Answer 8

70 degrees FLEXION
10 degrees SUPINATION

Question 9

closed packed position HUMEROULNAR

Answer 9

extension and supination

Question 10

capsular patter of restriction for HUMEROULNAR

Answer 10

flexion
extension

Question 11

ROM

Answer 11

flexion - 140-150
extension - 0-10
supination - 90
pronation - 80-90

Question 12

humeroradial joint type

**roll and glide go in same direction **

Answer 12

hinge, uniaxial

flexion
extension

Question 13

humeroradial ligaments

Answer 13

joint capsule
radial/lateral collateral
ulnar/medial collateral

Question 14

humeroradial articular surfaces

Answer 14

CONCAVE radial head
CONVEX capitulum of humerus

Question 15

HUMERORADIAL loose packed / resting position

Answer 15

full extension w full supination

Question 16

HUMERORADIAL close packed position

Answer 16

elbow flexed to 90
forearm supinated to 5

Question 17

HUMERORADIAL capsular restriction

Answer 17

1. flexion
2. extension
3. supination
4. pronation

Question 18

Proximal (superior) radioulnar joint ligaments

Answer 18

annular ligament
quadrate ligament

Question 19

Proximal radioulnar joint type

Answer 19

pivot
uniaxial

supination
pronation

Question 20

Proximal radioulnar articulating surfaces

Answer 20

CONVEX radial head
slightly CONCAVE radial notch of ulna

Question 21

Proximal radioulnar loose packed position

Answer 21

35 degrees supination
70 degrees flexion

Question 22

Proximal radioulnar close packed

Answer 22

forearm supinated to 5 degrees

Question 23

Proximal radioulnar capsular patter of restriction

Answer 23

supination
pronation

Question 24

Elbow joint complex accessory ligaments

Answer 24

radial / lateral collateral ligament
ulnar / medial collateral (3 bundles)
annular ligament
articular joint capsule

Question 25

what does the annular ligament surroun

Answer 25

radial head and radial notch of ulna allows for pronation and supination

Question 26

what mm's do flexion of arm

Answer 26

brachialis biceps brachii brachioradialis

Question 27

what is cubitus valgus

Answer 27

carry angle LOWER than normal "L shaped" varus = higher

Question 28

what is the carrying angle

Answer 28

angle measured between axis of radius and axis of humerus allows arm to bend away from body and to swing while walking without hitting the hips

Question 29

what are the 3 olecranon bursae

Answer 29

1. intratendinous 2. subtendinous 3. subcutaneous

Question 30

mm's that do pronation

Answer 30

pronator quadratus, pronator teres

Question 31

mm's that do supination

Answer 31

supinator biceps

Question 32

mms that do extension

Answer 32

triceps brachii anconeus

Question 33

mid radioulnar joint type

Answer 33

fibrous syndesmosis amphiarthrosis uniaxial

Question 34

distal radioulnar joint type

Answer 34

synovial diarthrosis pivot uniaxial

Question 35

distal radioulnar joint ligaments

Answer 35

articular disc triangular fibrocartilage complex TFCC (superficial and deep) dorsal / palmar radioulnar ligaments

Question 36

what wraps around the distal tendon of biceps

Answer 36

bicipitoradial bursa